The Karbonn A4 is a Dual-SIM android smartphone powered by 1 GHz Processor and runs on Android v2.3.6 (Gingerbread) Operatinng system and 256MB RAM, it has a stunning 4-inch HVGA display. Other features included in the phone are a 3.2- megapixel rear camera and VGA front camera, 512MB internal storage with a microSD card slot included, connectivity options like Wi-Fi and Bluetooth and a 1,400mAH battery. Buy this new Karbonn smartphone online now from maniacstore.com.